[Back In The Saddle]

In reading the rule the only inference I can find to support "all jerseys have to be the same color", other than the light color/dark color is the fact that the section is titled Uniforms.

According to the dictionary, one definition of uniform is: Unvaried in texture, color, or design.

But another is: A distinctive outfit intended to identify those who wear it as members of a specific group.

So as long as it distinctly identifies the player as being part of that player's team, it seems to be legal in every respect.